Solitons in Polyacetylene: Effects of Dilute Doping on Optical Absorption Spectra
N. SuzukiLaboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104Makiko OzakiLaboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104S. EtemadLaboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104Alan J. HeegerLaboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104Alan G. MacDiarmidLaboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104
1980en
ABI
Аннотация
A joint theoretical and experimental study of the effects of dilute doping on the optical absorption spectra of trans-polyacetylene, trans-${(\mathrm{CH})}_{x}$, is presented. It is shown that the optical transition between a band state and the soliton level is considerably enhanced. However, the existence of a soliton kink strongly suppresses the interband transition. The agreement between theory and experiment supports the applicability of the soliton model to trans-${(\mathrm{CH})}_{x}$.
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